Inventor · disambiguated record
Andrew Ollerenshaw
Also filed as: OLLERENSHAW ANDREW
7 granted patents·1 pending application·170 citations·filing 1989–2016
86Inventor score
Technology areasE21B
Files withINTELLIGENT DRILLING TOOLS LTD2RUSSELL MARK ALEXANDER2BOART UK LTD1REAMERCO LTD1TOOLBOX DRILLING SOLUTIONS LTD1
Top patents by PatentIndex Score
8 records- 0187US7252163B2Downhole under-reamer toolTOOLBOX DRILLING SOLUTIONS LTD·Filed 2005·Granted Aug 7, 2007·47 cites·40 claims
- 0282US6708785B1Fluid controlled adjustable down-hole toolFiled 2000·Granted Mar 23, 2004·69 cites·41 claims
- 0376US10370907B2Disconnect and other devices for downhole assemblyINTELLIGENT DRILLING TOOLS LTD·Filed 2015·Granted Aug 6, 2019·4 cites·19 claims
- 0454US4925320AFeed beam arrangement for a rockdrillBOART UK LTD·Filed 1989·Granted May 15, 1990·30 cites·11 claims
- 0551US7004266B2Adjustable downhole toolRUSSELL MARK ALEXANDER·Filed 2004·Granted Feb 28, 2006·16 cites·22 claims
- 0638US7128170B1Adjustable stabiliser for directional drillingRUSSELL MARK ALEXANDER·Filed 2003·Granted Oct 31, 2006·4 cites·28 claims
- 0738US2010108394A1Downhole ToolREAMERCO LTD·Filed 2008·Application pending·0 cites
- 0833US10648261B2Circulation subassemblyINTELLIGENT DRILLING TOOLS LTD·Filed 2016·Granted May 12, 2020·0 cites·33 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →